/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product40.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 11:57:57,608 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 11:57:57,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 11:57:57,660 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 11:57:57,660 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 11:57:57,671 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 11:57:57,673 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 11:57:57,677 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 11:57:57,680 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 11:57:57,684 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 11:57:57,685 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 11:57:57,686 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 11:57:57,686 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 11:57:57,689 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 11:57:57,692 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 11:57:57,696 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 11:57:57,697 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 11:57:57,700 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 11:57:57,701 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 11:57:57,708 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 11:57:57,711 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 11:57:57,713 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 11:57:57,715 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 11:57:57,715 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 11:57:57,719 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 11:57:57,720 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 11:57:57,720 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 11:57:57,723 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 11:57:57,724 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 11:57:57,726 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 11:57:57,726 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 11:57:57,727 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 11:57:57,728 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 11:57:57,728 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 11:57:57,729 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 11:57:57,730 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 11:57:57,730 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 11:57:57,731 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 11:57:57,731 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 11:57:57,732 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 11:57:57,733 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 11:57:57,734 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 11:57:57,761 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 11:57:57,761 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 11:57:57,763 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 11:57:57,763 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 11:57:57,763 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 11:57:57,764 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 11:57:57,764 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 11:57:57,764 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 11:57:57,764 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 11:57:57,764 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 11:57:57,765 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 11:57:57,765 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 11:57:57,765 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 11:57:57,765 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 11:57:57,765 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 11:57:57,766 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 11:57:57,766 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 11:57:57,766 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 11:57:57,766 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 11:57:57,766 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 11:57:57,767 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 11:57:57,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:57:57,767 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 11:57:57,767 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 11:57:57,767 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 11:57:57,768 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 11:57:57,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 11:57:57,768 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 11:57:57,768 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 11:57:57,768 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-09-25 11:57:58,243 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 11:57:58,271 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 11:57:58,276 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 11:57:58,278 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 11:57:58,281 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 11:57:58,283 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product40.cil.c [2020-09-25 11:57:58,368 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/16e09f76d/f514b68ea8534022a8863737f60c8440/FLAG596fff454 [2020-09-25 11:57:58,983 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 11:57:58,984 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product40.cil.c [2020-09-25 11:57:58,999 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/16e09f76d/f514b68ea8534022a8863737f60c8440/FLAG596fff454 [2020-09-25 11:57:59,266 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/16e09f76d/f514b68ea8534022a8863737f60c8440 [2020-09-25 11:57:59,280 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 11:57:59,286 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 11:57:59,287 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 11:57:59,288 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 11:57:59,292 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 11:57:59,293 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:57:59" (1/1) ... [2020-09-25 11:57:59,298 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b54cc27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:57:59, skipping insertion in model container [2020-09-25 11:57:59,298 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:57:59" (1/1) ... [2020-09-25 11:57:59,308 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 11:57:59,365 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 11:57:59,878 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:57:59,894 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 11:57:59,983 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:58:00,024 INFO L208 MainTranslator]: Completed translation [2020-09-25 11:58:00,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:00 WrapperNode [2020-09-25 11:58:00,024 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 11:58:00,025 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 11:58:00,026 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 11:58:00,026 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 11:58:00,044 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:00" (1/1) ... [2020-09-25 11:58:00,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:00" (1/1) ... [2020-09-25 11:58:00,068 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:00" (1/1) ... [2020-09-25 11:58:00,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:00" (1/1) ... [2020-09-25 11:58:00,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:00" (1/1) ... [2020-09-25 11:58:00,125 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:00" (1/1) ... [2020-09-25 11:58:00,130 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:00" (1/1) ... [2020-09-25 11:58:00,140 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 11:58:00,141 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 11:58:00,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 11:58:00,141 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 11:58:00,143 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:00" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:58:00,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 11:58:00,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 11:58:00,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 11:58:00,219 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 11:58:00,219 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 11:58:00,219 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 11:58:00,219 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 11:58:00,219 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 11:58:00,225 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 11:58:00,225 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 11:58:00,225 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 11:58:00,225 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 11:58:00,226 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 11:58:00,226 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 11:58:00,226 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 11:58:00,227 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 11:58:00,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 11:58:00,227 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 11:58:00,228 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 11:58:00,228 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 11:58:00,228 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 11:58:00,229 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 11:58:00,229 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 11:58:00,229 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 11:58:00,229 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 11:58:00,230 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 11:58:00,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 11:58:00,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 11:58:00,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 11:58:00,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 11:58:00,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 11:58:00,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 11:58:00,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 11:58:00,231 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 11:58:00,231 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 11:58:00,232 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 11:58:00,232 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 11:58:00,232 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 11:58:00,232 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 11:58:00,234 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 11:58:00,234 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 11:58:00,234 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 11:58:00,235 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 11:58:00,235 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 11:58:00,235 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 11:58:00,236 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 11:58:00,236 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 11:58:00,237 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 11:58:00,237 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 11:58:00,237 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 11:58:00,237 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 11:58:00,237 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 11:58:00,238 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 11:58:00,238 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 11:58:00,238 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 11:58:00,238 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 11:58:00,238 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 11:58:00,239 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 11:58:00,239 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 11:58:00,239 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 11:58:00,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 11:58:00,239 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 11:58:00,239 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 11:58:00,240 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 11:58:00,240 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 11:58:00,240 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 11:58:00,240 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 11:58:00,240 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 11:58:00,241 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 11:58:00,241 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 11:58:00,241 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 11:58:00,243 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 11:58:00,243 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 11:58:00,243 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 11:58:00,244 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 11:58:00,244 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 11:58:00,244 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 11:58:00,244 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 11:58:00,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 11:58:00,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 11:58:00,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 11:58:00,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 11:58:00,245 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 11:58:00,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 11:58:00,245 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 11:58:00,245 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 11:58:00,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 11:58:00,246 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 11:58:00,246 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 11:58:00,246 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 11:58:00,246 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 11:58:00,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 11:58:00,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 11:58:00,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 11:58:01,449 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 11:58:01,449 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 11:58:01,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:58:01 BoogieIcfgContainer [2020-09-25 11:58:01,466 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 11:58:01,467 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 11:58:01,467 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 11:58:01,471 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 11:58:01,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 11:57:59" (1/3) ... [2020-09-25 11:58:01,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f31a5e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:58:01, skipping insertion in model container [2020-09-25 11:58:01,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:00" (2/3) ... [2020-09-25 11:58:01,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f31a5e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:58:01, skipping insertion in model container [2020-09-25 11:58:01,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:58:01" (3/3) ... [2020-09-25 11:58:01,477 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product40.cil.c [2020-09-25 11:58:01,489 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 11:58:01,499 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 11:58:01,519 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 11:58:01,549 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 11:58:01,549 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 11:58:01,549 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 11:58:01,550 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 11:58:01,550 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 11:58:01,550 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 11:58:01,550 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 11:58:01,550 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 11:58:01,579 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states. [2020-09-25 11:58:01,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 11:58:01,597 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:58:01,599 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:58:01,599 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:58:01,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:58:01,608 INFO L82 PathProgramCache]: Analyzing trace with hash -483838742, now seen corresponding path program 1 times [2020-09-25 11:58:01,619 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:58:01,620 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1798496259] [2020-09-25 11:58:01,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:58:01,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:02,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:02,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:03,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:04,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:06,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:07,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:07,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 11:58:07,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 11:58:07,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 11:58:07,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:07,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:07,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 11:58:07,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 11:58:07,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 11:58:07,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 14 [2020-09-25 11:58:07,488 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:58:07,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:58:07,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:07,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:07,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:07,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:58:07,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:07,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 284 [2020-09-25 11:58:07,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:07,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:07,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:58:07,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:07,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 11:58:07,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:07,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:58:07,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:07,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:07,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:07,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:58:07,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:07,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 11:58:07,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:07,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:07,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:58:07,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:07,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:58:07,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:07,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:58:07,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:07,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:07,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:07,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:58:07,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:07,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 11:58:07,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:07,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:07,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:58:07,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:07,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:58:07,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:07,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:58:07,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:07,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:07,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:07,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:58:07,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:07,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:58:07,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:07,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:07,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:58:07,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:07,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:58:07,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:07,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:58:07,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:07,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:07,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:07,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:58:07,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:07,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:58:07,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:07,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:07,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:58:07,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:07,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:58:07,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:07,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 11:58:07,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:07,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:07,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:07,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:58:07,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:07,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:58:07,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:07,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:07,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:58:07,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:07,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:58:07,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:08,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 11:58:08,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:08,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:08,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:08,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:58:08,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:08,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:58:08,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:08,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:08,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:58:08,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:58:08,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:58:08,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:08,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:58:08,112 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1798496259] [2020-09-25 11:58:08,115 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:58:08,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 11:58:08,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238856809] [2020-09-25 11:58:08,124 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 11:58:08,124 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:58:08,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 11:58:08,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 11:58:08,153 INFO L87 Difference]: Start difference. First operand 311 states. Second operand 8 states. [2020-09-25 11:58:08,790 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:58:09,798 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:58:10,167 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:58:10,656 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:58:11,095 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:58:11,505 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:58:12,534 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:58:12,913 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:58:13,508 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:58:14,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:58:14,973 INFO L93 Difference]: Finished difference Result 661 states and 809 transitions. [2020-09-25 11:58:14,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 11:58:14,976 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 11:58:14,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:58:14,999 INFO L225 Difference]: With dead ends: 661 [2020-09-25 11:58:14,999 INFO L226 Difference]: Without dead ends: 444 [2020-09-25 11:58:15,008 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-25 11:58:15,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2020-09-25 11:58:15,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 385. [2020-09-25 11:58:15,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2020-09-25 11:58:15,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 429 transitions. [2020-09-25 11:58:15,196 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 429 transitions. Word has length 142 [2020-09-25 11:58:15,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:58:15,197 INFO L479 AbstractCegarLoop]: Abstraction has 385 states and 429 transitions. [2020-09-25 11:58:15,197 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 11:58:15,198 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 429 transitions. [2020-09-25 11:58:15,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 11:58:15,203 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:58:15,204 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:58:15,204 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 11:58:15,204 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:58:15,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:58:15,205 INFO L82 PathProgramCache]: Analyzing trace with hash -459376477, now seen corresponding path program 1 times [2020-09-25 11:58:15,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:58:15,205 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [263263315] [2020-09-25 11:58:15,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:58:15,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:15,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:15,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:15,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:20,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:20,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 11:58:20,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 11:58:20,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-09-25 11:58:20,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:20,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:20,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 11:58:20,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 11:58:20,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-09-25 11:58:20,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:20,747 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:58:20,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:58:20,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:20,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:21,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:21,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:58:21,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:21,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 314 [2020-09-25 11:58:21,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:21,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:21,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:58:21,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:21,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 11:58:21,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:58:21,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:58:21,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:21,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:21,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:21,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:58:21,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:21,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 11:58:21,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:21,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:21,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:58:21,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:21,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:58:21,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:21,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:58:21,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:21,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:21,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:21,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:58:21,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:21,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:58:21,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:21,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:21,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:58:21,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:21,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:58:21,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:21,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:58:21,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:21,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:21,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:21,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:58:21,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:21,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 11:58:21,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:21,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:21,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:58:21,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:21,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:58:21,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:21,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:58:21,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:21,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:21,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:21,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:58:21,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:21,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:58:21,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:21,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:21,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:58:21,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:21,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:58:21,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:21,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 11:58:21,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:21,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:21,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:21,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:58:21,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:21,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:58:21,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:21,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:21,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:58:21,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:21,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:58:21,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:21,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 11:58:21,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:21,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:21,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:21,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:58:21,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:21,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:58:21,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:21,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:21,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:58:21,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:21,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 11:58:21,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:58:21,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 11:58:21,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:21,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:21,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:21,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:58:21,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:21,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:58:21,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:21,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:21,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:58:21,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:21,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:58:21,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 11:58:21,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 11:58:21,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:21,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:21,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:21,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:58:21,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:21,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 11:58:21,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:21,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:21,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:58:21,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:21,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:58:21,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:21,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:58:21,485 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [263263315] [2020-09-25 11:58:21,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:58:21,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 11:58:21,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978738079] [2020-09-25 11:58:21,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 11:58:21,490 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:58:21,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 11:58:21,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 11:58:21,491 INFO L87 Difference]: Start difference. First operand 385 states and 429 transitions. Second operand 10 states. [2020-09-25 11:58:22,106 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:58:23,590 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:58:24,045 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 11:58:24,478 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:58:24,912 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 11:58:25,334 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:58:26,175 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:58:26,579 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:58:27,075 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:58:29,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:58:29,029 INFO L93 Difference]: Finished difference Result 1077 states and 1377 transitions. [2020-09-25 11:58:29,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 11:58:29,030 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 161 [2020-09-25 11:58:29,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:58:29,039 INFO L225 Difference]: With dead ends: 1077 [2020-09-25 11:58:29,039 INFO L226 Difference]: Without dead ends: 802 [2020-09-25 11:58:29,043 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-25 11:58:29,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2020-09-25 11:58:29,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 567. [2020-09-25 11:58:29,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 567 states. [2020-09-25 11:58:29,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 661 transitions. [2020-09-25 11:58:29,176 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 661 transitions. Word has length 161 [2020-09-25 11:58:29,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:58:29,177 INFO L479 AbstractCegarLoop]: Abstraction has 567 states and 661 transitions. [2020-09-25 11:58:29,177 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 11:58:29,177 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 661 transitions. [2020-09-25 11:58:29,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-25 11:58:29,182 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:58:29,182 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:58:29,182 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 11:58:29,183 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:58:29,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:58:29,183 INFO L82 PathProgramCache]: Analyzing trace with hash 1366553455, now seen corresponding path program 1 times [2020-09-25 11:58:29,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:58:29,183 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [577853173] [2020-09-25 11:58:29,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:58:29,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:29,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:30,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:30,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-09-25 11:58:30,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:30,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 825 [2020-09-25 11:58:30,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:30,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:30,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:58:30,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 190 [2020-09-25 11:58:30,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 11:58:30,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:58:30,356 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:58:30,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:58:30,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:30,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:30,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:30,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:58:30,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:30,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 11:58:30,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:30,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:30,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:58:30,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:30,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:58:30,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:30,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:58:30,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:30,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:30,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:30,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:58:30,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:30,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 11:58:30,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:30,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:30,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:58:30,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:30,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:58:30,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:58:30,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:58:30,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:30,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:30,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:30,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:58:30,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:30,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 11:58:30,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:30,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:30,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:58:30,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:30,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:58:30,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:30,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:58:30,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:30,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:30,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:30,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:58:30,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:30,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:58:30,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:30,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:30,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:58:30,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:30,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:58:30,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:30,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:58:30,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:30,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:30,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:30,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:58:30,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:30,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 11:58:30,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:30,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:30,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:58:30,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:30,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:58:30,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:30,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 11:58:30,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:30,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:30,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:30,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:58:30,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:30,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:58:30,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:30,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:30,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:58:30,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:30,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:58:30,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:58:30,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 11:58:30,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:30,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:30,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:30,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:58:30,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:30,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:58:30,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:30,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:30,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:58:30,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:30,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:58:30,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:58:30,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 11:58:30,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:30,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:30,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:30,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 11:58:30,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:30,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-25 11:58:30,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:30,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:30,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:58:30,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 11:58:30,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 11:58:30,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:30,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:58:30,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:30,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:30,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:30,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 11:58:30,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:30,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 11:58:30,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:30,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:30,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:58:30,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 11:58:30,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 11:58:30,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:30,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:58:30,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:30,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:30,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:30,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 11:58:30,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:30,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 11:58:30,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:30,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:30,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:58:30,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:30,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 11:58:30,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:30,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:58:30,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:30,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:30,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:30,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:58:30,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:30,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:58:30,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:30,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:30,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:58:30,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:30,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:58:30,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:30,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 11:58:30,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:30,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:30,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:30,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:58:30,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:30,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:58:30,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:30,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:30,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:58:30,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 11:58:30,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:58:30,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:30,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-25 11:58:30,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:30,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:30,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:30,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:58:30,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:30,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:58:30,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:30,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:30,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:58:30,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:58:30,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:58:30,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:30,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-25 11:58:30,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:30,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:30,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:30,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:58:30,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:30,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:58:30,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:30,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:30,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:58:30,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:58:30,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:58:30,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:58:30,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:58:30,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [577853173] [2020-09-25 11:58:30,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:58:30,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 11:58:30,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623240316] [2020-09-25 11:58:30,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 11:58:30,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:58:30,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 11:58:30,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 11:58:30,864 INFO L87 Difference]: Start difference. First operand 567 states and 661 transitions. Second operand 11 states. [2020-09-25 11:58:32,808 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:58:33,171 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:58:33,549 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 11:58:33,950 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:58:34,374 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:58:34,711 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:58:36,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:58:36,627 INFO L93 Difference]: Finished difference Result 1439 states and 1883 transitions. [2020-09-25 11:58:36,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 11:58:36,628 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 199 [2020-09-25 11:58:36,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:58:36,642 INFO L225 Difference]: With dead ends: 1439 [2020-09-25 11:58:36,642 INFO L226 Difference]: Without dead ends: 982 [2020-09-25 11:58:36,644 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-09-25 11:58:36,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2020-09-25 11:58:36,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 589. [2020-09-25 11:58:36,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 589 states. [2020-09-25 11:58:36,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 683 transitions. [2020-09-25 11:58:36,778 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 683 transitions. Word has length 199 [2020-09-25 11:58:36,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:58:36,779 INFO L479 AbstractCegarLoop]: Abstraction has 589 states and 683 transitions. [2020-09-25 11:58:36,779 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 11:58:36,779 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 683 transitions. [2020-09-25 11:58:36,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-25 11:58:36,783 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:58:36,783 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:58:36,783 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 11:58:36,784 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:58:36,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:58:36,784 INFO L82 PathProgramCache]: Analyzing trace with hash 392683279, now seen corresponding path program 1 times [2020-09-25 11:58:36,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:58:36,785 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1273985090] [2020-09-25 11:58:36,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:58:36,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:36,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:37,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:37,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-09-25 11:58:37,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:37,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 699 [2020-09-25 11:58:37,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:37,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:37,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:58:37,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 182 [2020-09-25 11:58:37,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:58:37,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:37,841 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:58:37,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:58:37,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:37,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:37,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:37,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:58:37,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:37,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 11:58:37,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:37,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:37,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:58:37,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:37,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:58:37,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:58:37,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:58:37,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:37,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:37,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:37,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:58:37,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:37,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 11:58:37,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:37,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:37,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:58:37,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:37,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:58:37,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:37,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:58:37,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:37,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:37,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:37,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:58:37,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:37,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 11:58:37,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:37,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:37,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:58:37,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:37,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:58:37,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:37,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:58:37,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:37,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:37,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:37,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:58:37,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:37,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:58:38,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:38,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:38,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:58:38,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:38,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:58:38,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:38,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:58:38,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:38,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:38,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:38,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:58:38,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:38,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 11:58:38,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:38,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:38,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:58:38,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:38,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:58:38,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:38,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 11:58:38,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:38,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:38,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:38,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:58:38,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:38,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:58:38,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:38,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:38,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:58:38,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:38,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:58:38,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:38,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 11:58:38,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:38,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:38,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:38,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:58:38,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:38,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:58:38,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:38,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:38,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:58:38,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:38,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:58:38,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:38,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 11:58:38,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:38,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:38,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:38,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 11:58:38,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:38,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-25 11:58:38,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:38,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:38,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:58:38,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 11:58:38,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:58:38,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:38,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:58:38,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:38,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:38,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:38,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 11:58:38,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:38,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-25 11:58:38,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:38,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:38,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:58:38,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 11:58:38,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:58:38,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:38,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:58:38,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:38,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:38,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:38,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 11:58:38,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:38,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 11:58:38,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:38,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:38,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:58:38,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 11:58:38,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:58:38,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:38,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:58:38,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:38,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:38,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:38,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:58:38,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:38,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:58:38,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:38,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:38,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:58:38,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:38,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:58:38,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:58:38,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 11:58:38,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:38,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:38,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:38,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:58:38,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:38,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:58:38,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:38,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:38,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:58:38,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 11:58:38,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:58:38,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:38,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-25 11:58:38,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:38,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:38,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:38,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:58:38,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:38,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:58:38,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:38,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:38,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:58:38,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:58:38,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:58:38,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:38,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-25 11:58:38,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:38,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:38,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:38,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:58:38,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:38,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:58:38,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:38,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:38,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:58:38,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:58:38,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:58:38,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:38,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:58:38,418 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1273985090] [2020-09-25 11:58:38,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:58:38,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 11:58:38,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501230561] [2020-09-25 11:58:38,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 11:58:38,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:58:38,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 11:58:38,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-25 11:58:38,421 INFO L87 Difference]: Start difference. First operand 589 states and 683 transitions. Second operand 10 states. [2020-09-25 11:58:39,971 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:58:40,336 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:58:40,745 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:58:41,181 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:58:41,543 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:58:43,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:58:43,548 INFO L93 Difference]: Finished difference Result 1483 states and 1976 transitions. [2020-09-25 11:58:43,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 11:58:43,549 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 199 [2020-09-25 11:58:43,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:58:43,559 INFO L225 Difference]: With dead ends: 1483 [2020-09-25 11:58:43,559 INFO L226 Difference]: Without dead ends: 1004 [2020-09-25 11:58:43,562 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-25 11:58:43,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2020-09-25 11:58:43,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 601. [2020-09-25 11:58:43,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2020-09-25 11:58:43,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 695 transitions. [2020-09-25 11:58:43,665 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 695 transitions. Word has length 199 [2020-09-25 11:58:43,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:58:43,666 INFO L479 AbstractCegarLoop]: Abstraction has 601 states and 695 transitions. [2020-09-25 11:58:43,667 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 11:58:43,667 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 695 transitions. [2020-09-25 11:58:43,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-09-25 11:58:43,671 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:58:43,672 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:58:43,672 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 11:58:43,672 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:58:43,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:58:43,673 INFO L82 PathProgramCache]: Analyzing trace with hash -384148779, now seen corresponding path program 1 times [2020-09-25 11:58:43,673 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:58:43,673 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [479399224] [2020-09-25 11:58:43,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:58:43,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:43,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:43,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:44,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:44,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:44,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:48,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:48,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-09-25 11:58:48,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 11:58:48,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 11:58:48,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:48,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:48,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 11:58:48,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 11:58:48,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-09-25 11:58:48,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1